A friend has an L35, and when he is traveling on a bumpy road, the bucket will move up and down violently while the arms stay stationary. When you push upward on the bucket, it will move a couple of inches with virtually no effort. You can visually see the bucket cylinders moving in and out. There is no leakage of the cylinders externally. What suggestions as to the cause? I think that the nut at the end of the cylinder has come loose, but what I don't understand is why both cylinders would be affected.